HS20: Handheld at 720mm???

Started Aug 15, 2011 | Discussions thread
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"2 stops isn't even often necessary" ????
In reply to Daniel Lowe, Aug 18, 2011

Daniel Lowe wrote:

Those attempts were more about proving 2 stops isn't even often necessary with nature type photography .

You've made this statement several times and I don't even know what it means.

These are the overall reference scenes I posted from my informal garden tests yesterday - from the middle of the day with bright sunshine - the light dosn't get much better here in the UK.

One was over 2 stops under, the other was 5 stops under. Granted, they're only dark corners of my garden - but they could equally be on a deer amongst trees, or a bird in foliage. Obviously, presented with 5 stop deficit in shutter speed, I'd up ISO a little for a better compromise, but saying that 2 stops of shutter speed is rarely needed doesn't even make sense.

126mm @ 1/160 - EXIF in the image - it's over 2 stops under in sunlight:

126mm @ 1/27 - EXIF in tact:

I think these would qualify as 'nature' shots. I think I'd find it very rare at 126mm that I could ever actually secure an optimal exposure - i.e. 1/750 @ ƒ6.4 (stopped for better IQ) and 100ISO. Your light in NZ must be quite something if you rarely need better than 2 stops at 126mm.

1/170 @ ƒ5.6 400 ISO 126mm - 4 stops from optimal:

Full bright perfect sunshine - 2 stops from optimal settings - 126mm 1/750 @ ƒ5.6 200ISO :

Full bright perfect sunshine - 2 stops from optimal - 126mm 1/450 @ ƒ5.6 200ISO:

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